Casing liner



July 4, 1933. H. b. SANDSTONE CASING LINER Filed March 18, 1929 InventorPatented July 4, 1933 HARVEY DA'VID SANDSTONE, or Los ANGELES,CALIFORNIA "CASING LINER Application filed'March 18, 1929. Serial No.347,850.

This invention relates to a method and means for lining tunnels, ditchesand casing wells with a cementitious material with or withoutreinforcing. v a

The invention comprises a tubular body, having a tubular memberextending therethrough. Within said member are mounted 1 wire containingspools that furnish the vertical or parallel reinforcing and the uppervertical spool which furnishes the spiral or circular reinforcing.

This invention also comprises a device for distributing cement, concreteor any kind of 7 plastic material to form a casing or to fill up 1 anyspaces or breaks that may occur in the course of construction ofsaidcasing and a tubular form to mold or shape and protect the plasticmaterial until it sets, is provided, which is actuated in timed relationwith the distributing device.

An object of this invention is the novel method of casing a well with aconcrete lining with or without reinforcing.

' Another object is that this mechanism may begin its lining operationeither at the top of the well or the bottom which is already plug, oreither end of tunnels, ditches, or pipe mes.

Another object is simplicity in construction and operation, enabling itto be used with a flexible conduit as a cement conveyor enabling theoperator to apply thin coatings of cementitious materials on the returntrip, which can not be accomplished when a string of casing or pipe. isused, necessitating the breaking of joints in the drill stem to raise orlower the equipment."

The invention is not limited to'the specificconstruction shown herein,and 1t is under-- stood that forms of embodiment other than those shownmay be employed without departing from the invention or from theprinciples herein disclosed and embodied in the 45 mechanism herein setforth and clalmed.

The accompanying drawing illustrates the invention. w

Figure 1 is a diagrammatical view of the invention, showing the workingparts thereof.

Figure 2 is a section on line 2-2, Fig. 1, showing the completedreinforced casing.

Figure 3 is a Cross section on line 3-3, Fig. 1, showing the rollerrelease band, comveyor'tub'e, cement distributor and completed casing inthe making.

Figure 4 is a section on line 44,' Fig. 1, showing spiral reinforcingspool, Within the distributing shuttle.

'Figure' 5 is a section on line 55, Fig. 1, showing the bevel gearsusedin revolving the shuttle. v Figure 6 is'an enlarged View showing thereleasing and placing of the reinforcing wires, and the cutters forsame.

The invention comprises a tubular member 8, forming axis for the wirecontaining spools 9, which are revolvably mounted thereon and saidmember 8, being provided with a funnel shaped top as at 8a, 10 indicatesa casing that forms a housing for the p Reinforcing spools and 11 formsthe outer shell which encases all-the mechanism pertaining thereto. f

Within the shell 11, and at its upper end is located a spring cushion,12, interposed between flanges 13 and 15, which absorbs all shocks fromthe actuating sleeve 14.

The funnel shaped top 8a, is provided with a hooped flange 18, whichgrabs the flange 19, of the fol-lower 17, to lower the follower as themechanism is lowered into the well.

' Roller release band 21, is shown-in a compressed or closed position,retarding or closing the outlet cement ports, while the drill is beinglowered to its working position, and to which band 21, has connected andholds theends of the reinforcing wires, and which band, when coming tothe end of the laid casing slips ofl of said end expands and fastensitself into the dirt wall ofthe well, this operation opens thedischaigeports allowing the cement to flow and holds the reinforcingwires firmly and allowing the mechanism to proceed. When it is necessaryto raise the equipment thehandle of ratchet 22, comes in contact withthe cement casing which is laid, throwing the handle downward closingthe cutters 23, and 24, and releasing the reinforcing wire ends 27a, and28a, distributor places 'the cement into the forms, associated therewithis release valve 25a, which releases the cement from the hose whenpulling up, which receives the cement through conveyor 26, connectedwith the source of supply not shown. 5 27 indicates the verticalreinforcing placed on spools 9, in Fig. 1, 27 a, shows the vertical wirereinforcing going through the cutters and into the cement casing, Fig.6.

The upper spool 29, contains the spiral or horizontal reinforcingmaterial 28, which is revolvably mounted in actuated shuttle 30, and ispayed out into the cementitious material by the rotary motion of theshuttle as at 28a. f

To actuate the spools 9, and 29, in timed relation with one another aseries of reduction gears are used, comprising gear A, meshing with ringgear E, fixed to the .bottom of shuttle 30, to rotate same, the gear B,meshes with largerring gear D, that is fixed to the top end of spools 9,which are rotated by the pulling or reinforcing wires 27, which arefastened by their loose ends to the expanding ring roller band 21, Fig.3, which also shows rollers 33, and fastenings 34, and the split in theband 32, allowing the band to expand as soon as the rollers reach theend of the cement casing and is freed and lodges itself in to the dirtwell walls and holds tightly the ends of reinforcing wires 27, to whichit had been fastened while at the top of well before descending.

The distributer 25, is provided with a series of ports 31, which areplaced equally around the periphry of the distributer as shown in Fig.3,

In operation this device is lowered or started in to the hole alreadymade, the roller release band is placed around the cement port openingsand held in place until the end of the finished casing is reached or asat the beginning or starting point is released at once, as it iscomposed of expanding material, it instantly releases itself and isfirmly lodged into the sides of the openings to be cased, holding theends of all reinforcing wires, and the device is now ready to proceed.

As the device is lowered into the opening to be cased, the cementitiousmaterial is forced through a flexibleconductor from the source of supplyinto the cement distributer,

and out through its ports into the spaces between the follower or form17, and the 1929 formation walls of the well, the follower being ofample length to protect the green cement while curing.

The tubular member 8, being hollow allowing the passage of foreignmatter in case the well is full of liquid, thus eliminating any dangerof the foreign matter coming in contact with the cementitious matterbefore it is set.

What I claim is:

1. The method of lining well bores which contemplates the continuingapplication to the wall of the well bore of a cementitious mixture aheadof the continuing downward progress of a suitablecore or form, andsimultaneously introducing reinforcing mate- 50 rial into suchcementitious material as it is being applied to such wall.

2. The method of casing a well which comprises constantly-progressingtherein a tubular form or core having a lesser diameter than such well,progressively discharging a cementitious mixture ahead of the form sothat it will occupy the space existing between the form and the wall ofthe well bore, compelling the progressing form to pass over and supportthe discharged mixture for an interval during the preliminary settingthereof, and simultaneously unreeling reinforcing members into saidmixture as it is being so discharged.

3. The method of casing a well which comprises constantly progressingtherein a tubular form or core having a lesser diameter than such well,continuously discharging a cement mixture ahead of the progressing '1form in a manner that for an interval it becomes confined between theform and the wall of the Well; and simultaneously, with the discharge ofthe cement, weaving therewith reinforcing wires.

4:. The herein described method of casing a well which comprisescontinuously progressing a core downward in the well, continuouslysupplying a cement mix at the bottom of the core so that it is forcedbetween the core and the wall of the well by the 'downward movement ofsuch core, and simultaneously weaving flexible reinforcing members .intothe cement mix as it is being discharged at the bottom of the core. 11

Signed at Los Angeles, Los Angeles County, California, this 14th day ofMarch,

HARVEY DAVID SANDSTONE.

